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Miri combined cycle power station

Gas power plant in Sarawak, Malaysia. Approximate location 3.605331, 113.74337.

GasSarawakMalaysiaCCGT · HRSGMitsubishi Power: M701FPre Construction

Miri combined cycle power station is a 500 MW gas power station in Sarawak, Malaysia. It is operated by PETROS Power Sdn Bhd. Based on its capacity (estimated), it can supply roughly 563k homes (estimated). It ranks #33 of 82 Malaysia power plants by installed capacity. In context, gas supplies about 33.8% of Malaysia's electricity; the national grid averages 602 gCO₂/kWh (20.7% low-carbon) (2025).

500MW installed capacity
1HRSG unit(s)
563,142homes powered (est.)
2027Pre Construction

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GOGPT_miricombinedcycle_malays.

Data status

Known data

FacilityMiri combined cycle power station GEM-GOGPT
CountryMalaysia · Sarawak GEM-GOGPT
Coordinates3.605331, 113.74337 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity500 MW GEM GOGPT; source record
OwnerPETROS Power Sdn Bhd GEM-GOGPT
Commissioned2027 GEM-GOGPT
TechnologyCCGT · Mitsubishi Power: M701F · HRSG GEM-GOGPT

Calculated from dataset

CO₂ emissions788,400 t CO₂·a⁻¹ calculated
Capacity rank in country#33 / 82 calculated
Fuel-specific rank in country#24 / 42 calculated
Capacity vs country/fuel peers0.77× · 650 MW · n=42 calculated
Homes-powered equivalent563,142 calculated
Environmental severityC4 · 41/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: GEM GOGPT; fuel: GEM GOGPT

In context: how this plant compares

At 500 MW, Miri combined cycle power station is below the median gas plant in Malaysia (650 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG); Mitsubishi Power: M701F. Its current lifecycle status is “Pre Construction” — so it is not yet, or no longer, generating at full output. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest gas plants in Malaysia

Kedah (THB Power) power station: 2,600 MW3kKedah (THB…Kapar Energy Ventures (KEV): 2,420 MW2kKapar Ener…Alor Gajah (Melaka) power station: 2,242 MW2kAlor Gajah…Pengerang Co-generation plant: 1,900 MW2kPengerang …Pulau Bunting power station: 1,600 MW2kPulau Bunt…Pasir Gudang SIPP power station: 1,440 MW1kPasir Guda…Port Dickson Power Station: 1,400 MW1kPort Dicks…Segari: 1,304 MW1kSegari

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by PETROS Power Sdn Bhd.

Climate zone & how it works

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 3.6°N — which shapes how much energy it can produce and how its output varies through the year.

~26°Ctypical annual mean
~27°Ctypical warm-season mean
Tropical rainforest: hot and humid year-round with little seasonal variation

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
41/100environmental-severity index
1.2°Cseasonal temperature swing
57 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby plants

The #24 largest gas power plant of 42 in Malaysia by capacity.

Malaysia has 42 gas power plants in this dataset, together about 32,464 MW of capacity.

Nearby power plants

Location

Coordinates 3.605331, 113.74337 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Miri combined cycle power station?

Miri combined cycle power station is a 500 MW gas power plant in Sarawak, Malaysia, Pre Construction 2027.

How many homes can Miri combined cycle power station power?

Its output is enough to supply roughly 563,142 homes (estimated).

Who operates Miri combined cycle power station?

Miri combined cycle power station is operated by PETROS Power Sdn Bhd.

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